Fuse



H. G. TOWNER April 1 1, 1939.

FUSE

Filed Sept. 2, 1938 I ouook Fig 5 Patented Apr. 11, 1939 UNITED STATESPATENT QFFME FUSE Harold G. Towner, New Haven, Application September 2,

3 Claims.

(Granted under the act of March amended April 30, 1928; 370 0.

pin when the b impact.

To these and other ends, the invention consists 'n the construction,tion of elements described hereinafter and point- I specification.

A practical embodiment of the invention is illustrated in theaccompanying drawing, wherein:

Figure l is a longitudinal sectional view of the fuse with the partsadjusted for delay firing action;

Fig. 2 is a similar view with the for instantaneous firing action;

Fig. 3 is a view showing the fired position with the adjustment of Fig.2;

Figs. 4 and 5 are sectional views on the corresponding lines of Fig. 1;

Fig. 6 is a sectional view on the line 6-6 of Fig. 3;

Fig. 7 is an inside face view of the plug of Fig. 6.

Referring to the drawing by characters of reference, there is shown afuse, comprising a body 5 having threads 6 for attaching to it a bombcasing and formed with a flanged head 7 having a. central recess 8. Theinner end of the body :arries an eccentrically positionedprimer-detoparts arranged iator 9 which is in communication with 0011-,

H, the passage 18 conmovement of a firing erging passages l and aimingand providing for in I2 and the passage l l arranged to conduct he fiashfrom a primer-delay train l3. A shear in I4 in the body holds the firingpin [2 clear f the primer-detonator and with its outer end xtending intothe recess 8.

A striker l carrying a firing pin !6 in its inner id is partiallydisposed in the recess 8 of the my and includes a fianged head iioverlying Le head 1. Blocks I8 interposed between the eads and I!normally maintain the inner end 001111. 1938, Serial No. 228,117 (01.10239) 3, 1883, as G. 757) of the striker in spaced relation to thefioor of the recess 8 and hold thev known manner by a cap l9 which has aspindle 2G threaded in the striker. Vanes 2i on the cap serve in theusual manner to provide for rotation threaded in order to free theclear.

A bolt 22 disposed radially of the fuse has its outer portion passingthrough an opening 23 in the head 'I and its inner portion inserted inan opening 24 in the striker. The opening 26 is in communication with apassage 25 which receives the outer end of the firing pin l2.

blocks it which fall aligned with the passage 25 so that it may receivethe end of the firing pin when the striker is moved inwardly.

The bolt is rotatably mounted so that it may be turned to present thepassage 26 to the firing pin as shown in Fig. 1 or to present a solidsurface to the firing pin as shown in Fig. 2. It is held in either oneof these positions of adjustwhich is selectively In Fig. 2 the parts areadjusted for instantaneous action and when the striker is drivenrearwardly the severed inner end of the bolt (Fig. 3) drives the firingpin l2 into the primer detonator 9, shearing the pin I4.

is completely un- I claim:

1. In a fuse, a body having a recess in its front part and havingpassages, a primer-detonator carried by the body at one end of thepassages, a primer-delay train in communication with one of thepassages, a first firing pin in the other passage, a shear pin in thebody and supporting the firing pin with its outer end extending into therecess of the body, a striker having its inner end disposed in therecess of the body, a second firing pin carried by the striker in linewith the primer-delay train, a bolt rotatably mounted in the body andhaving a shearable inner end positioned in the path of the first firingpinto actuate said firing pin, said inner end having a passage arrangedto receive the end of the first firing pin in one position of adjustmentof the bolt, and means for selectively holding the bolt with its passagein line or out of line with the first firing pin.

2. In a fuse, a body, a -firing pin carried by the body, a strikermovable relative to the body, a

bolt rotatably mounted in the body and having a shearable inner endsupporting the striker and positioned in the path of the firing pin toactuate said firing pin, said inner end rotatable to clear the firingpin in one position of adjustment of the bolt, means for selectivelyholding the bolt in the path of or clear of the firing pin, and elementsof a second firing mechanism carried by the body and striker.

3. In a fuse, a body, a firing pin carried by the body, a strikermovable relative to the body, a bolt rotatably mounted in the body andhaving a shearable inner end inserted in the striker and positioned inthe path of the firing pin to actuate said firing pin, said inner endrotatable to clear the firing pin in one position of adjustment of thebolt, means for selectively holding the bolt in the path of or clear ofthe firing pin, and elements of a second firing mechanism carried by thebody and striker.

HAROLD .G. TOWNER

